Koestler
Koestler or Köstler is the family name of the following people:
- Andreas Köstler (* 1962), German art historian
- Arthur Koestler (1905–1983), Austro-Hungarian and English writer
- Erwin Köstler (politician) (1928–1993), Austrian politician (ÖVP)
- Erwin Köstler (translator) (* 1964), Austrian literary scholar and translator
- Josef Koestler (1878–1935), Austrian geologist
- Josef Nikolaus Köstler (1902–1982), German forest scientist
- Lorenz von Köstler (1807–1888), Bohemian spa doctor
- Marco Köstler (* 1973), German musician, singer and mixer
- Maria Köstler (1879–1965), Austrian politician (SdP), member of the National Council
- Peter Köstler (1805-1870), German Catholic priest
- Siegfried Köstler (* 1950), German soccer player
See also:
- Koestler (musical instruments) , a Nauheim harmonica company